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           Search results for: (Acetylmethylene)triphenylphosphorane C21H19OP CAS: 1439-36-7   

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The quality of voluntary medical male circumcision done by mid-level workers in Tshwane District, South Africa: A retrospective analysis.

Voluntary medical male circumcision (VMMC) reduces the acquisition of human immunodeficiency virus (HIV) in heterosexual men by up to 60%. One HIV infection is averted for every 5 to 15 VMMCs. To conduct VMMCs in large populations, large numbers of trained healthcare professionals are needed. Countries in Sub-Saharan Africa have a high burden of HIV and a shortage of healthcare professionals, creating a healthcare conundrum. To bridge this gap, South Africa launched a new cadre of mid-level medical worker called Clinical Associates (CA). We assessed the ability of CAs to perform circumcisions of adequate quality and their subsequent usefulness to meet the demands of VMMCs in a population with a high HIV burden.

1240 related Products with: The quality of voluntary medical male circumcision done by mid-level workers in Tshwane District, South Africa: A retrospective analysis.

BYL-719 Mechanisms: PI3K- Mid advanced stage bladde Mid advanced stage bladde Thermal Shaker with cooli Mid advanced stage uterin FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu FDA Standard Frozen Tissu Mid advanced stage brain

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The Physical Characteristics by Sex and Age for Custody Assistants from a Law Enforcement Agency.

Custody assistants (CAs) are a position within a law enforcement agency who are responsible for assisting officers with maintaining security in correctional facilities. Unlike other positions, CAs may not be required to complete physical testing prior to being hired. This lack of testing could influence the characteristics of CAs who attend academy training. Therefore, retrospective analysis of performance test data for 108 officers (69 males, 39 females) was conducted. The tests included: grip strength for both hands; number of push-ups and sit-ups in 60 seconds; 201 m (220 yard) and 2.4 km runs; and maximal aerobic capacity (V˙O2max) estimated from the 2.4 km run. Data were stratified by sex and age (≤24 years, 25-29 years, 30-34 years, ≥35 years). Independent samples t-tests (p < 0.05) calculated differences between males and females. To compare age groups, a one-way ANOVA with Bonferroni post hoc was utilized (p < 0.05). Males scored significantly higher than females in hand grip, push-ups, and sit-ups, were faster over the 201 m and 2.4 km runs, and had a higher V˙O2max (p ≤ 0.001-0.024). There were no significant differences in performance tests across the age groups for either males or females. To better tolerate the rigors of physical training, female CAs should attempt to improve their fitness prior to academy as they often need to complete the same tasks as the males. Age did not appear to influence the physical characteristics of CAs, although all CAs should attempt to develop the fitness qualities needed for their occupation.

2704 related Products with: The Physical Characteristics by Sex and Age for Custody Assistants from a Law Enforcement Agency.

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High-Speed Device-Independent Quantum Random Number Generation without a Detection Loophole.

Quantum mechanics provides the means of generating genuine randomness that is impossible with deterministic classical processes. Remarkably, the unpredictability of randomness can be certified in a manner that is independent of implementation devices. Here, we present an experimental study of device-independent quantum random number generation based on a detection-loophole-free Bell test with entangled photons. In the randomness analysis, without the independent identical distribution assumption, we consider the worst case scenario that the adversary launches the most powerful attacks against the quantum adversary. After considering statistical fluctuations and applying an 80  Gb×45.6  Mb Toeplitz matrix hashing, we achieve a final random bit rate of 114  bits/s, with a failure probability less than 10^{-5}. This marks a critical step towards realistic applications in cryptography and fundamental physics tests.

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Facile preparation of carbon-dot-supported nanoflowers for efficient photothermal therapy of cancer cells.

Herein, novel self-assembled red-emissive C-dots@Au nanoflowers were developed, and they demonstrated efficient photothermal properties under 750 nm laser irradiation. Moreover, C-dots@Au nanoflowers showed the ability of simultaneous photoacoustic and fluorescence imaging. Our study may provide a novel strategy for the efficient phototherapy of cancer cells based on C-dots.

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A catalyst-free intermolecular trans-iodoalkylation of alkynes.

We report the first catalyst-free and trans-selective iodoalkylation reaction of alkynes with a series of α-carbonyl compounds. This unprecedented three-component iodoalkylation reaction is enabled by using (iodoethynyl)trimethylsilane as a radical initiator and iodide source. The 1,2-difunctionalization affords alkenyl iodides, which are versatile building blocks for the construction of tri-substituted alkene derivatives.

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Energy-efficient electrolytic hydrogen production assisted by coupling urea oxidation with a pH-gradient concentration cell.

An unprecedented asymmetric-electrolyte electrolyzer is proposed using an acidic cathode for the hydrogen evolution reaction (HER) and an alkaline anode for the urea oxidation reaction (UOR), which significantly decreases the electrical energy required for electrolytic hydrogen production.

1084 related Products with: Energy-efficient electrolytic hydrogen production assisted by coupling urea oxidation with a pH-gradient concentration cell.

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Discovery of the first macrolide antibiotic binding protein in Mycobacterium tuberculosis: a new antibiotic resistance drug target.


1276 related Products with: Discovery of the first macrolide antibiotic binding protein in Mycobacterium tuberculosis: a new antibiotic resistance drug target.

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Dissociative electron attachment and anion-induced dimerization in pyruvic acid.

We report partial cross sections for the dissociative electron attachment to pyruvic acid. A rich fragmentation dynamics is observed. Electronic structure calculations facilitate the identification of complex rearrangement reactions that occur during the dissociation. Furthermore, a number of fragment anions produced at electron energies close to 0 eV are observed, that cannot originate from single electron-molecule collisions. We ascribe their production to secondary reactions of the transient anions with neutral molecules. Such reactions turn out to be unusually efficient; the most probable reason for this is that they proceed via the formation of a double-hydrogen-bonded complex followed by an ultrafast proton transfer between the reaction partners.

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Molecular basis for CENP-N recognition of CENP-A nucleosome on the human kinetochore.


1699 related Products with: Molecular basis for CENP-N recognition of CENP-A nucleosome on the human kinetochore.

Growth Differentiation Fa anti CD45 RA B cells, T c NATIVE HUMAN PROLACTIN, P Native Human Lactoferrin, NATIVE HUMAN PROLACTIN, P Anti C Reactive Protein A Bone Morphogenetic Protei anti FAS IgG1 (monoclonal anti FAS IgM (monoclonal) anti SLAM anti CDw150 IgG anti CD16 monoclonal anti anti CD20 monoclonal anti

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Rhodium(III)-Catalyzed Directed C-H Coupling with Methyl Trifluoroacrylate: Diverse Synthesis of Fluoroalkenes and Heterocycles.

An example of Rh-catalyzed C-H activation with methyl trifluoroacrylate for the synthesis of fluoroolefins and heterocycles (benzoindolizines) is reported. The types of products were determined by the directing group. The benzoindolizines and fluoroolefins were obtained by using pyridine and pyrazole as the directing group, correspondingly. These transformations present a number of advantages, such as oxidant-free reaction conditions and broad functional group tolerance. Moreover, this reaction greatly extends the application of fluoroolefins.

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